The frequency of the wheel is the number of revolutions per second:
[tex]f= \frac{N_{rev}}{t}= \frac{10}{1 s}=10 Hz [/tex]
And now we can calculate the angular speed, which is given by:
[tex]\omega = 2 \pi f=2 \pi (10 Hz)=62.8 rad/s[/tex]
in the clockwise direction.
